diff --git a/src/pages/api/evaluate/interactiveSpeaking.ts b/src/pages/api/evaluate/interactiveSpeaking.ts
index 62e9f53e..bc97a885 100644
--- a/src/pages/api/evaluate/interactiveSpeaking.ts
+++ b/src/pages/api/evaluate/interactiveSpeaking.ts
@@ -53,7 +53,7 @@ async function handler(req: NextApiRequest, res: NextApiResponse) {
 			{
 				solutions,
 				score: {
-					correct: speakingReverseMarking[backendRequest.data.overall],
+					correct: speakingReverseMarking[backendRequest.data.overall || 0] || 0,
 					missing: 0,
 					total: 100,
 				},
diff --git a/src/pages/api/evaluate/speaking.ts b/src/pages/api/evaluate/speaking.ts
index a299df9e..08a7d4f9 100644
--- a/src/pages/api/evaluate/speaking.ts
+++ b/src/pages/api/evaluate/speaking.ts
@@ -48,7 +48,7 @@ async function handler(req: NextApiRequest, res: NextApiResponse) {
 			{
 				solutions,
 				score: {
-					correct: speakingReverseMarking[backendRequest.data.overall],
+					correct: speakingReverseMarking[backendRequest.data.overall || 0] || 0,
 					total: 100,
 					missing: 0,
 				},